Featured Publications
Platelet-derived TLT-1 promotes tumor progression by suppressing CD8+ T cells
Tyagi T, Jain K, Yarovinsky TO, Chiorazzi M, Du J, Castro C, Griffin J, Korde A, Martin KA, Takyar SS, Flavell RA, Patel AA, Hwa J. Platelet-derived TLT-1 promotes tumor progression by suppressing CD8+ T cells. Journal Of Experimental Medicine 2022, 220: e20212218. PMID: 36305874, PMCID: PMC9814191, DOI: 10.1084/jem.20212218.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlood PlateletsCarcinoma, Non-Small-Cell LungCD8-Positive T-LymphocytesLung NeoplasmsMiceReceptors, ImmunologicConceptsCD8 T cellsT cellsTLT-1Non-small cell lung cancer patientsCell lung cancer patientsTREM-like transcript-1Tumor immunosuppressive mechanismsT cell suppressionLung cancer patientsPatient T cellsNF-κB pathwayPatient-derived tumorsDistinct activation phenotypesNSCLC patientsImmunosuppressive mechanismsSyngeneic tumorsHumanized miceImmunoregulatory rolePrognostic significanceImmunocompetent miceCancer patientsCell suppressionActivation phenotypeReduced tumorTumor growthAltered expression of platelet proteins and calpain activity mediate hypoxia-induced prothrombotic phenotype
Tyagi T, Ahmad S, Gupta N, Sahu A, Ahmad Y, Nair V, Chatterjee T, Bajaj N, Sengupta S, Ganju L, Singh SB, Ashraf MZ. Altered expression of platelet proteins and calpain activity mediate hypoxia-induced prothrombotic phenotype. Blood 2013, 123: 1250-1260. PMID: 24297866, DOI: 10.1182/blood-2013-05-501924.Peer-Reviewed Original ResearchConceptsCalpain activityPlatelet reactivityProthrombotic phenotypeThrombus formationSoluble P-selectin levelsIncidence of thrombosisP-selectin levelsProthrombotic rolePlatelet hyperreactivitySolid tumorsVivo modelSmall subunit 1ThrombosisPathological conditionsAltered expressionHypoxic conditionsHypoxic environmentPlatelet proteinsHypoxiaExtreme altitudePresent studyCalpain functionPlateletsSubunit 1Phenotype
2024
Platelet Mitochondrial Fusion and Function in Vascular Integrity
Tyagi T, Yarovinsky T, Faustino E, Hwa J. Platelet Mitochondrial Fusion and Function in Vascular Integrity. Circulation Research 2024, 134: 162-164. PMID: 38236952, PMCID: PMC10798220, DOI: 10.1161/circresaha.123.323867.Peer-Reviewed Original Research
2022
Platelet in thrombo-inflammation: Unraveling new therapeutic targets
Sharma S, Tyagi T, Antoniak S. Platelet in thrombo-inflammation: Unraveling new therapeutic targets. Frontiers In Immunology 2022, 13: 1039843. PMID: 36451834, PMCID: PMC9702553, DOI: 10.3389/fimmu.2022.1039843.Peer-Reviewed Original ResearchMeSH KeywordsBlood PlateletsCOVID-19Endothelial CellsFemaleHumansInflammationIschemic StrokePregnancyConceptsRole of plateletsViral infectionPlatelet activationCoagulation pathwayThrombo-inflammatory disordersAcute ischemic strokeContribution of plateletsAnti-inflammatory potentialThrombo-inflammatory diseasesCoronavirus disease 2019Sickle cell diseaseNon-pathologic conditionsNew therapeutic targetsRecruitment of leukocytesPathologic platelet activationPlatelet surface receptorsFormation of thrombiInitial platelet activationSuperficial thrombophlebitisAntiphospholipid syndromeIschemic strokeMicrovascular thrombosisClinical manifestationsInflammatory processCell disease
2019
Venous thrombosis at altitude presents with distinct biochemical profiles: a comparative study from the Himalayas to the plains
Prabhakar A, Chatterjee T, Bajaj N, Tyagi T, Sahu A, Gupta N, Kumari B, Nair V, Kumar B, Ashraf MZ. Venous thrombosis at altitude presents with distinct biochemical profiles: a comparative study from the Himalayas to the plains. Blood Advances 2019, 3: 3713-3723. PMID: 31765479, PMCID: PMC6880906, DOI: 10.1182/bloodadvances.2018024554.Peer-Reviewed Original ResearchConceptsVenous thromboembolismAdhesion molecule-1VTE patientsHA exposureMolecule-1Vascular cell adhesion molecule-1Toll-like receptor 2Intracellular adhesion molecule-1Receiver operator characteristic curve analysisCell adhesion molecule-1Operator characteristic curve analysisMost VTEElevated platelet countVascular endothelial growth factorCharacteristic curve analysisYounger age groupsPlatelet factor 4Endothelial growth factorDistinct biochemical profilesVon Willebrand factorAltered coagulationVTE eventsVenous thrombosisEndothelial activationPlatelet countAuthor's response to “platelet antioxidants: A conundrum in aging”
Jain K, Tyagi T, Ionescu CN, Hwa J. Author's response to “platelet antioxidants: A conundrum in aging”. EBioMedicine 2019, 47: 31-32. PMID: 31471267, PMCID: PMC6796587, DOI: 10.1016/j.ebiom.2019.08.047.Peer-Reviewed Original ResearchMitochondrial MsrB2 serves as a switch and transducer for mitophagy
Lee SH, Lee S, Du J, Jain K, Ding M, Kadado AJ, Atteya G, Jaji Z, Tyagi T, Kim W, Herzog RI, Patel A, Ionescu CN, Martin KA, Hwa J. Mitochondrial MsrB2 serves as a switch and transducer for mitophagy. EMBO Molecular Medicine 2019, 11: emmm201910409. PMID: 31282614, PMCID: PMC6685081, DOI: 10.15252/emmm.201910409.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlood PlateletsCell LineDiabetes MellitusFemaleHumansMethionine Sulfoxide ReductasesMice, Inbred C57BLMice, KnockoutMicrofilament ProteinsMicrotubule-Associated ProteinsMitochondriaMitochondrial Membrane Transport ProteinsMitochondrial Permeability Transition PoreMitophagyMutationOxidation-ReductionOxidative StressParkinson DiseaseSignal TransductionUbiquitin-Protein LigasesUbiquitinationConceptsReduced mitophagyOxidative stress-induced mitophagyNovel regulatory mechanismStress-induced mitophagyLC3 interactionMitochondrial matrixDamaged mitochondriaMsrB2Reactive oxygen speciesRegulatory mechanismsMethionine oxidationMitophagyMitochondriaPlatelet apoptosisOxygen speciesPlatelet-specific knockoutApoptosisPathophysiological importanceExpressionImportant roleUbiquitinationParkin mutationsParkinSpeciesLC3Age associated non-linear regulation of redox homeostasis in the anucleate platelet: Implications for CVD risk patients
Jain K, Tyagi T, Patell K, Xie Y, Kadado AJ, Lee SH, Yarovinsky T, Du J, Hwang J, Martin KA, Testani J, Ionescu CN, Hwa J. Age associated non-linear regulation of redox homeostasis in the anucleate platelet: Implications for CVD risk patients. EBioMedicine 2019, 44: 28-40. PMID: 31130473, PMCID: PMC6604369, DOI: 10.1016/j.ebiom.2019.05.022.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalAge FactorsAgedAged, 80 and overAgingAnimalsAntioxidantsApoptosisBiomarkersBlood PlateletsCardiovascular DiseasesComorbidityDisease Models, AnimalFemaleHomeostasisHumansMaleMiceMiddle AgedOxidation-ReductionOxidative StressPlatelet ActivationPlatelet AdhesivenessReactive Oxygen SpeciesRisk AssessmentRisk FactorsConceptsRisk patientsMouse studiesPlatelet phenotypeMajor adverse cardiovascular eventsHigh cardiovascular risk patientsAdaptive increaseAdverse cardiovascular eventsCentral pathophysiological roleCVD risk patientsCardiovascular risk patientsAggressive antiplatelet therapyEffect of comorbidityAge group 40Young healthy subjectsAntiplatelet therapyCardiovascular eventsYear age cohortAdvanced ageCVD patientsGroup 40Healthy subjectsPathophysiological roleElderly populationCardiovascular pathologyPatientsEpithelial (E)-Cadherin is a Novel Mediator of Platelet Aggregation and Clot Stability
Scanlon VM, Teixeira AM, Tyagi T, Zou S, Zhang PX, Booth CJ, Kowalska MA, Bao J, Hwa J, Hayes V, Marks MS, Poncz M, Krause DS. Epithelial (E)-Cadherin is a Novel Mediator of Platelet Aggregation and Clot Stability. Thrombosis And Haemostasis 2019, 119: 744-757. PMID: 30861547, PMCID: PMC6599679, DOI: 10.1055/s-0039-1679908.Peer-Reviewed Original ResearchConceptsConditional knockout miceKnockout micePlatelet aggregationE-cadherinClot stabilityClot stabilizationSynthase kinase 3β activationAntibody-mediated platelet depletionVivo injury modelsNull plateletsPlatelet productionWild-type miceTail bleeding timeAkt/GSK3βMurine platelet aggregationKnockout mouse modelPlatelet dysfunctionFibrin depositionInjury modelPlatelet depletionPrimary human plateletsBleeding timeMouse modelPlatelet numberE-cadherin antibody